George Carlin/Janis Ian & Billy Preston

John Belushi

Self - Various Characters

Laraine Newman

Self - Various Characters

Gilda Radner

Self - Various Characters

Jane Curtin

Self - Various Characters

Dan Aykroyd

Self - Various Characters

Garrett Morris

Self - Various Characters

Chevy Chase

Self - Various Characters

Janis Ian

Self - Musical Guest

George Carlin

Self - Host

Billy Preston

Self - Musical Guest

Valri Bromfield

Self - Stand-up Act

Albert Brooks

Interviewer (segment 'The Impossible Truth') (voice)

Andy Kaufman

Self - Stand-up Act

Paul Simon

Self

Michael O'Donoghue

Various

George Coe

Various